Troubleshooting - Pentair Myers MBSP Notice D'utilisation

Operation / Troubleshooting
5. Recycle charge stage:
The charger automatically initiates a charge cycle that
begins with the prequalification test stage. This occurs
once the battery has been in the float charge stage for
84 days.
Special Features:
• The chargers are equipped with reverse battery, short
circuit, and "run-away charge" protection.
• A built-in safety timer starts when the charger enters
the Constant Current/Constant Voltage Charge stage
(Yellow LED is continuously on). The MBSP system
has a 90 hour safety timer and the MBSP-PLUS-18T
system has a 20.5 hour safety timer.
NOTICE: To reset the charger unplug it from the 120V
outlet for 10 seconds and then plug it back in.
BATTERY REQUIREMENTS
Hazardous electrical current. Can cause
severe burns and start a fire if battery terminals are short
circuited. Install the battery in a battery box (See Key
No. 8, Page 15). To prevent accidental shorting across
battery terminals, strap cover securely (See Figure 13) on
the battery box. Do not leave battery uncovered. Do not
allow children to play around the battery backup system
installation.
Figure 13 – Battery Hold-down Strap Threading
Your backup sump pump depends on the battery used
with it for power. The better the battery, the better the
performance of the pump. We recommend the use
of a size 27M Marine Deep Cycle Battery or a size
24M Marine Deep Cycle Battery. They will perform as
indicated in Table IX, on Page 13, and they stand up
well to long periods of little or no use.
NOTICE: The 24M battery will provide the same
performance as a 27M battery , but for a shorter length of
time.
Use of a standard automobile battery, GEL type, or a
Maintenance Free (sealed) battery with this charger is
not recommended. An automobile battery may require
charging after only 1-2 hours of continuous use, and the
repeated charging cycles may cause early plate failure
in the battery. GEL-type batteries require a lower voltage
than the charger is designed for; they may overcharge.
Maintenance-free (sealed) batteries require a higher
voltage; they may never reach full charge.
3340 1198
Use only the recommended battery or one of the same
type and size so it will fit in the battery box (maximum
size 12-5/8" long, 7" wide and 9-3/8" high [320.7mm
x 177.8mm x 238mm] including terminals) and supply
enough voltage for full performance.
BATTERY MAINTENANCE
Severe burn hazard. A filled battery contains
sulfuric acid. Avoid contact with skin, eyes or clothing.
NOTICE: To protect battery case from chipping and
gouging, do not let battery sit on concrete floor. Install
battery on a shelf or protective pad (plywood, 2x4s, etc.).
Always install battery in a dry location that is protected
from flooding.
Follow the battery manufacturer's recommendations for
maintenance and safe use of battery.

TROUBLESHOOTING

Pump won't run.
1. Check all wiring connections.
2. Check for low or defective battery.
3. Check that automatic switch is free to swing up and
down.
4. Check for a blown fuse in the junction box of the
MBSP system or in the charger of the MBSP-PLUS-
18T system.
Motor hums but pump won't run:
1. Check for low or defective battery.
Pump runs but pumps very little or no water:
1. Make sure a check valve is installed and functioning
between primary pump discharge and Backup Sump
Pump tee.
2. Check for obstruction in discharge pipe.
3. Discharge pipe length and/or height exceeds capacity
of pump. See Table IX, Page 13, for pump capacity.
4. Check for low or defective battery.
5. Positive (+) and negative (–) wires are reversed.
Pump cycles too frequently:
1. Tether length too short on automatic float switch.
Make sure that tether is at least 2.5" (63.5mm); see
Figure 6, Page 6.
2. Main check valve located between discharge of
primary pump and the Backup Sump Pump tee is not
installed or is not working properly. Install or repair
as required.
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